mirror of
https://github.com/mozilla/gecko-dev.git
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91a521bf3a
The IPCDataTransfer type is used to transfer Clipboard/Drag & Drop payloads over IPC to allow them to be written to or read from the relevant system interfaces. Previously, the system which was used was somewhat complex, and tried to use Shmem in some cases to store buffers out of line. Now that BigBuffer is available, it can be simplified substantially. In addition, this change removed the memory buffer overload of GetSurfaceData, as the only consumer was using it to immediately send the payload over IPC as a nsCString. It was changed to instead use `BigBuffer` as that is more efficient in a large buffer situation, and reduces the number of required copies. Differential Revision: https://phabricator.services.mozilla.com/D151852
1185 lines
38 KiB
C++
1185 lines
38 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "base/basictypes.h"
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#include "gfxPlatform.h"
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#include "nsRefreshDriver.h"
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#include "mozilla/dom/BrowserChild.h"
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#include "mozilla/gfx/gfxVars.h"
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#include "mozilla/IMEStateManager.h"
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#include "mozilla/layers/APZChild.h"
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#include "mozilla/layers/WebRenderLayerManager.h"
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#include "mozilla/NativeKeyBindingsType.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/SchedulerGroup.h"
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#include "mozilla/StaticPrefs_browser.h"
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#include "mozilla/StaticPrefs_gfx.h"
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#include "mozilla/TextComposition.h"
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#include "mozilla/TextEventDispatcher.h"
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#include "mozilla/TextEvents.h"
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#include "mozilla/Unused.h"
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#include "PuppetWidget.h"
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#include "nsContentUtils.h"
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#include "nsIWidgetListener.h"
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#include "imgIContainer.h"
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#include "nsView.h"
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#include "nsXPLookAndFeel.h"
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#include "nsPrintfCString.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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using namespace mozilla::gfx;
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using namespace mozilla::layers;
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using namespace mozilla::widget;
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static void InvalidateRegion(nsIWidget* aWidget,
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const LayoutDeviceIntRegion& aRegion) {
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for (auto iter = aRegion.RectIter(); !iter.Done(); iter.Next()) {
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aWidget->Invalidate(iter.Get());
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}
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}
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/*static*/
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already_AddRefed<nsIWidget> nsIWidget::CreatePuppetWidget(
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BrowserChild* aBrowserChild) {
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MOZ_ASSERT(!aBrowserChild || nsIWidget::UsePuppetWidgets(),
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"PuppetWidgets not allowed in this configuration");
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nsCOMPtr<nsIWidget> widget = new PuppetWidget(aBrowserChild);
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return widget.forget();
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}
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namespace mozilla {
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namespace widget {
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static bool IsPopup(const nsWidgetInitData* aInitData) {
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return aInitData && aInitData->mWindowType == eWindowType_popup;
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}
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static bool MightNeedIMEFocus(const nsWidgetInitData* aInitData) {
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// In the puppet-widget world, popup widgets are just dummies and
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// shouldn't try to mess with IME state.
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#ifdef MOZ_CROSS_PROCESS_IME
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return !IsPopup(aInitData);
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#else
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return false;
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#endif
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}
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// Arbitrary, fungible.
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const size_t PuppetWidget::kMaxDimension = 4000;
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NS_IMPL_ISUPPORTS_INHERITED(PuppetWidget, nsBaseWidget,
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TextEventDispatcherListener)
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PuppetWidget::PuppetWidget(BrowserChild* aBrowserChild)
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: mBrowserChild(aBrowserChild),
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mMemoryPressureObserver(nullptr),
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mEnabled(false),
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mVisible(false),
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mSizeMode(nsSizeMode_Normal),
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mNeedIMEStateInit(false),
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mIgnoreCompositionEvents(false) {
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// Setting 'Unknown' means "not yet cached".
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mInputContext.mIMEState.mEnabled = IMEEnabled::Unknown;
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}
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PuppetWidget::~PuppetWidget() { Destroy(); }
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void PuppetWidget::InfallibleCreate(nsIWidget* aParent,
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nsNativeWidget aNativeParent,
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const LayoutDeviceIntRect& aRect,
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nsWidgetInitData* aInitData) {
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MOZ_ASSERT(!aNativeParent, "got a non-Puppet native parent");
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BaseCreate(nullptr, aInitData);
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mBounds = aRect;
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mEnabled = true;
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mVisible = true;
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mDrawTarget = gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(
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IntSize(1, 1), SurfaceFormat::B8G8R8A8);
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mNeedIMEStateInit = MightNeedIMEFocus(aInitData);
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PuppetWidget* parent = static_cast<PuppetWidget*>(aParent);
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if (parent) {
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parent->SetChild(this);
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mWindowRenderer = parent->GetWindowRenderer();
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} else {
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Resize(mBounds.X(), mBounds.Y(), mBounds.Width(), mBounds.Height(), false);
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}
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mMemoryPressureObserver = MemoryPressureObserver::Create(this);
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}
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nsresult PuppetWidget::Create(nsIWidget* aParent, nsNativeWidget aNativeParent,
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const LayoutDeviceIntRect& aRect,
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nsWidgetInitData* aInitData) {
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InfallibleCreate(aParent, aNativeParent, aRect, aInitData);
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return NS_OK;
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}
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void PuppetWidget::InitIMEState() {
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MOZ_ASSERT(mBrowserChild);
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if (mNeedIMEStateInit) {
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mContentCache.Clear();
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mBrowserChild->SendUpdateContentCache(mContentCache);
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mIMENotificationRequestsOfParent = IMENotificationRequests();
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mNeedIMEStateInit = false;
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}
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}
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already_AddRefed<nsIWidget> PuppetWidget::CreateChild(
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const LayoutDeviceIntRect& aRect, nsWidgetInitData* aInitData,
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bool aForceUseIWidgetParent) {
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bool isPopup = IsPopup(aInitData);
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nsCOMPtr<nsIWidget> widget = nsIWidget::CreatePuppetWidget(mBrowserChild);
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return ((widget && NS_SUCCEEDED(widget->Create(isPopup ? nullptr : this,
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nullptr, aRect, aInitData)))
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? widget.forget()
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: nullptr);
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}
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void PuppetWidget::Destroy() {
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if (mOnDestroyCalled) {
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return;
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}
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mOnDestroyCalled = true;
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Base::OnDestroy();
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Base::Destroy();
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if (mMemoryPressureObserver) {
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mMemoryPressureObserver->Unregister();
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mMemoryPressureObserver = nullptr;
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}
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mChild = nullptr;
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if (mWindowRenderer) {
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mWindowRenderer->Destroy();
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}
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mWindowRenderer = nullptr;
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mBrowserChild = nullptr;
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}
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void PuppetWidget::Show(bool aState) {
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NS_ASSERTION(mEnabled,
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"does it make sense to Show()/Hide() a disabled widget?");
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bool wasVisible = mVisible;
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mVisible = aState;
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if (mChild) {
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mChild->mVisible = aState;
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}
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if (!wasVisible && mVisible) {
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// The previously attached widget listener is handy if
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// we're transitioning from page to page without dropping
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// layers (since we'll continue to show the old layers
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// associated with that old widget listener). If the
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// PuppetWidget was hidden, those layers are dropped,
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// so the previously attached widget listener is really
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// of no use anymore (and is actually actively harmful - see
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// bug 1323586).
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mPreviouslyAttachedWidgetListener = nullptr;
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Resize(mBounds.Width(), mBounds.Height(), false);
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Invalidate(mBounds);
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}
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}
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void PuppetWidget::Resize(double aWidth, double aHeight, bool aRepaint) {
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LayoutDeviceIntRect oldBounds = mBounds;
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mBounds.SizeTo(
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LayoutDeviceIntSize(NSToIntRound(aWidth), NSToIntRound(aHeight)));
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if (mChild) {
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mChild->Resize(aWidth, aHeight, aRepaint);
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return;
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}
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// XXX: roc says that |aRepaint| dictates whether or not to
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// invalidate the expanded area
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if (oldBounds.Size() < mBounds.Size() && aRepaint) {
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LayoutDeviceIntRegion dirty(mBounds);
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dirty.Sub(dirty, oldBounds);
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InvalidateRegion(this, dirty);
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}
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// call WindowResized() on both the current listener, and possibly
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// also the previous one if we're in a state where we're drawing that one
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// because the current one is paint suppressed
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if (!oldBounds.IsEqualEdges(mBounds) && mAttachedWidgetListener) {
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if (GetCurrentWidgetListener() &&
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GetCurrentWidgetListener() != mAttachedWidgetListener) {
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GetCurrentWidgetListener()->WindowResized(this, mBounds.Width(),
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mBounds.Height());
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}
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mAttachedWidgetListener->WindowResized(this, mBounds.Width(),
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mBounds.Height());
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}
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}
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void PuppetWidget::SetFocus(Raise aRaise, CallerType aCallerType) {
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if (aRaise == Raise::Yes && mBrowserChild) {
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mBrowserChild->SendRequestFocus(true, aCallerType);
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}
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}
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void PuppetWidget::Invalidate(const LayoutDeviceIntRect& aRect) {
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#ifdef DEBUG
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debug_DumpInvalidate(stderr, this, &aRect, "PuppetWidget", 0);
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#endif
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if (mChild) {
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mChild->Invalidate(aRect);
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return;
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}
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if (mBrowserChild && !aRect.IsEmpty() && !mWidgetPaintTask.IsPending()) {
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mWidgetPaintTask = new WidgetPaintTask(this);
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nsCOMPtr<nsIRunnable> event(mWidgetPaintTask.get());
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SchedulerGroup::Dispatch(TaskCategory::Other, event.forget());
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}
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}
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mozilla::LayoutDeviceToLayoutDeviceMatrix4x4
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PuppetWidget::WidgetToTopLevelWidgetTransform() {
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if (!GetOwningBrowserChild()) {
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NS_WARNING("PuppetWidget without Tab does not have transform information.");
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return mozilla::LayoutDeviceToLayoutDeviceMatrix4x4();
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}
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return GetOwningBrowserChild()->GetChildToParentConversionMatrix();
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}
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void PuppetWidget::InitEvent(WidgetGUIEvent& aEvent,
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LayoutDeviceIntPoint* aPoint) {
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if (nullptr == aPoint) {
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aEvent.mRefPoint = LayoutDeviceIntPoint(0, 0);
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} else {
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// use the point override if provided
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aEvent.mRefPoint = *aPoint;
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}
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aEvent.mTime = PR_Now() / 1000;
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}
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nsresult PuppetWidget::DispatchEvent(WidgetGUIEvent* aEvent,
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nsEventStatus& aStatus) {
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#ifdef DEBUG
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debug_DumpEvent(stdout, aEvent->mWidget, aEvent, "PuppetWidget", 0);
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#endif
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MOZ_ASSERT(!mChild || mChild->mWindowType == eWindowType_popup,
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"Unexpected event dispatch!");
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MOZ_ASSERT(!aEvent->AsKeyboardEvent() ||
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aEvent->mFlags.mIsSynthesizedForTests ||
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aEvent->AsKeyboardEvent()->AreAllEditCommandsInitialized(),
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"Non-sysnthesized keyboard events should have edit commands for "
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"all types "
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"before dispatched");
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if (aEvent->mClass == eCompositionEventClass) {
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// If we've already requested to commit/cancel the latest composition,
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// TextComposition for the old composition has been destroyed. Then,
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// the DOM tree needs to listen to next eCompositionStart and its
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// following events. So, until we meet new eCompositionStart, let's
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// discard all unnecessary composition events here.
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if (mIgnoreCompositionEvents) {
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if (aEvent->mMessage != eCompositionStart) {
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aStatus = nsEventStatus_eIgnore;
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return NS_OK;
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}
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// Now, we receive new eCompositionStart. Let's restart to handle
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// composition in this process.
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mIgnoreCompositionEvents = false;
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}
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// Store the latest native IME context of parent process's widget or
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// TextEventDispatcher if it's in this process.
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WidgetCompositionEvent* compositionEvent = aEvent->AsCompositionEvent();
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#ifdef DEBUG
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if (mNativeIMEContext.IsValid() &&
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mNativeIMEContext != compositionEvent->mNativeIMEContext) {
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RefPtr<TextComposition> composition =
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IMEStateManager::GetTextCompositionFor(this);
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MOZ_ASSERT(
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!composition,
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"When there is composition caused by old native IME context, "
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"composition events caused by different native IME context are not "
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"allowed");
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}
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#endif // #ifdef DEBUG
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mNativeIMEContext = compositionEvent->mNativeIMEContext;
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mContentCache.OnCompositionEvent(*compositionEvent);
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}
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// If the event is a composition event or a keyboard event, it should be
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// dispatched with TextEventDispatcher if we could do that with current
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// design. However, we cannot do that without big changes and the behavior
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// is not so complicated for now. Therefore, we should just notify it
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// of dispatching events and TextEventDispatcher should emulate the state
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// with events here.
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if (aEvent->mClass == eCompositionEventClass ||
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aEvent->mClass == eKeyboardEventClass) {
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TextEventDispatcher* dispatcher = GetTextEventDispatcher();
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// However, if the event is being dispatched by the text event dispatcher
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// or, there is native text event dispatcher listener, that means that
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// native text input event handler is in this process like on Android,
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// and the event is not synthesized for tests, the event is coming from
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// the TextEventDispatcher. In these cases, we shouldn't notify
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// TextEventDispatcher of dispatching the event.
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if (!dispatcher->IsDispatchingEvent() &&
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!(mNativeTextEventDispatcherListener &&
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!aEvent->mFlags.mIsSynthesizedForTests)) {
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DebugOnly<nsresult> rv =
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dispatcher->BeginInputTransactionFor(aEvent, this);
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rv),
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"The text event dispatcher should always succeed to start input "
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"transaction for the event");
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}
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}
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aStatus = nsEventStatus_eIgnore;
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if (GetCurrentWidgetListener()) {
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aStatus =
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GetCurrentWidgetListener()->HandleEvent(aEvent, mUseAttachedEvents);
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}
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return NS_OK;
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}
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nsIWidget::ContentAndAPZEventStatus PuppetWidget::DispatchInputEvent(
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WidgetInputEvent* aEvent) {
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ContentAndAPZEventStatus status;
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if (!AsyncPanZoomEnabled()) {
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DispatchEvent(aEvent, status.mContentStatus);
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return status;
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}
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if (!mBrowserChild) {
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return status;
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}
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switch (aEvent->mClass) {
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case eWheelEventClass:
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Unused << mBrowserChild->SendDispatchWheelEvent(*aEvent->AsWheelEvent());
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break;
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case eMouseEventClass:
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Unused << mBrowserChild->SendDispatchMouseEvent(*aEvent->AsMouseEvent());
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break;
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case eKeyboardEventClass:
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Unused << mBrowserChild->SendDispatchKeyboardEvent(
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*aEvent->AsKeyboardEvent());
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break;
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case eTouchEventClass:
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Unused << mBrowserChild->SendDispatchTouchEvent(*aEvent->AsTouchEvent());
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break;
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default:
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MOZ_ASSERT_UNREACHABLE("unsupported event type");
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}
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return status;
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}
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nsresult PuppetWidget::SynthesizeNativeKeyEvent(
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int32_t aNativeKeyboardLayout, int32_t aNativeKeyCode,
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uint32_t aModifierFlags, const nsAString& aCharacters,
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const nsAString& aUnmodifiedCharacters, nsIObserver* aObserver) {
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AutoObserverNotifier notifier(aObserver, "keyevent");
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if (!mBrowserChild) {
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return NS_ERROR_FAILURE;
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}
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mBrowserChild->SendSynthesizeNativeKeyEvent(
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aNativeKeyboardLayout, aNativeKeyCode, aModifierFlags, aCharacters,
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aUnmodifiedCharacters, notifier.SaveObserver());
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return NS_OK;
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}
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nsresult PuppetWidget::SynthesizeNativeMouseEvent(
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mozilla::LayoutDeviceIntPoint aPoint, NativeMouseMessage aNativeMessage,
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MouseButton aButton, nsIWidget::Modifiers aModifierFlags,
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nsIObserver* aObserver) {
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AutoObserverNotifier notifier(aObserver, "mouseevent");
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if (!mBrowserChild) {
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return NS_ERROR_FAILURE;
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}
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mBrowserChild->SendSynthesizeNativeMouseEvent(
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aPoint, static_cast<uint32_t>(aNativeMessage),
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static_cast<int16_t>(aButton), static_cast<uint32_t>(aModifierFlags),
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notifier.SaveObserver());
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return NS_OK;
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}
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nsresult PuppetWidget::SynthesizeNativeMouseMove(
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mozilla::LayoutDeviceIntPoint aPoint, nsIObserver* aObserver) {
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AutoObserverNotifier notifier(aObserver, "mousemove");
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if (!mBrowserChild) {
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return NS_ERROR_FAILURE;
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}
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mBrowserChild->SendSynthesizeNativeMouseMove(aPoint, notifier.SaveObserver());
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return NS_OK;
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}
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nsresult PuppetWidget::SynthesizeNativeMouseScrollEvent(
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mozilla::LayoutDeviceIntPoint aPoint, uint32_t aNativeMessage,
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double aDeltaX, double aDeltaY, double aDeltaZ, uint32_t aModifierFlags,
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uint32_t aAdditionalFlags, nsIObserver* aObserver) {
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AutoObserverNotifier notifier(aObserver, "mousescrollevent");
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if (!mBrowserChild) {
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return NS_ERROR_FAILURE;
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}
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mBrowserChild->SendSynthesizeNativeMouseScrollEvent(
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aPoint, aNativeMessage, aDeltaX, aDeltaY, aDeltaZ, aModifierFlags,
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aAdditionalFlags, notifier.SaveObserver());
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return NS_OK;
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}
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nsresult PuppetWidget::SynthesizeNativeTouchPoint(
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uint32_t aPointerId, TouchPointerState aPointerState,
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LayoutDeviceIntPoint aPoint, double aPointerPressure,
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uint32_t aPointerOrientation, nsIObserver* aObserver) {
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AutoObserverNotifier notifier(aObserver, "touchpoint");
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if (!mBrowserChild) {
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return NS_ERROR_FAILURE;
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}
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mBrowserChild->SendSynthesizeNativeTouchPoint(
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aPointerId, aPointerState, aPoint, aPointerPressure, aPointerOrientation,
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notifier.SaveObserver());
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return NS_OK;
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}
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nsresult PuppetWidget::SynthesizeNativeTouchPadPinch(
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TouchpadGesturePhase aEventPhase, float aScale, LayoutDeviceIntPoint aPoint,
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int32_t aModifierFlags) {
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if (!mBrowserChild) {
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return NS_ERROR_FAILURE;
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}
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mBrowserChild->SendSynthesizeNativeTouchPadPinch(aEventPhase, aScale, aPoint,
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aModifierFlags);
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return NS_OK;
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}
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nsresult PuppetWidget::SynthesizeNativeTouchTap(LayoutDeviceIntPoint aPoint,
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bool aLongTap,
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nsIObserver* aObserver) {
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AutoObserverNotifier notifier(aObserver, "touchtap");
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if (!mBrowserChild) {
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return NS_ERROR_FAILURE;
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}
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mBrowserChild->SendSynthesizeNativeTouchTap(aPoint, aLongTap,
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notifier.SaveObserver());
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return NS_OK;
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}
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nsresult PuppetWidget::ClearNativeTouchSequence(nsIObserver* aObserver) {
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AutoObserverNotifier notifier(aObserver, "cleartouch");
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if (!mBrowserChild) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
mBrowserChild->SendClearNativeTouchSequence(notifier.SaveObserver());
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult PuppetWidget::SynthesizeNativePenInput(
|
|
uint32_t aPointerId, TouchPointerState aPointerState,
|
|
LayoutDeviceIntPoint aPoint, double aPressure, uint32_t aRotation,
|
|
int32_t aTiltX, int32_t aTiltY, int32_t aButton, nsIObserver* aObserver) {
|
|
AutoObserverNotifier notifier(aObserver, "peninput");
|
|
if (!mBrowserChild) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
mBrowserChild->SendSynthesizeNativePenInput(
|
|
aPointerId, aPointerState, aPoint, aPressure, aRotation, aTiltX, aTiltY,
|
|
aButton, notifier.SaveObserver());
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult PuppetWidget::SynthesizeNativeTouchpadDoubleTap(
|
|
LayoutDeviceIntPoint aPoint, uint32_t aModifierFlags) {
|
|
if (!mBrowserChild) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
mBrowserChild->SendSynthesizeNativeTouchpadDoubleTap(aPoint, aModifierFlags);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult PuppetWidget::SynthesizeNativeTouchpadPan(
|
|
TouchpadGesturePhase aEventPhase, LayoutDeviceIntPoint aPoint,
|
|
double aDeltaX, double aDeltaY, int32_t aModifierFlags,
|
|
nsIObserver* aObserver) {
|
|
AutoObserverNotifier notifier(aObserver, "touchpadpanevent");
|
|
if (!mBrowserChild) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
mBrowserChild->SendSynthesizeNativeTouchpadPan(aEventPhase, aPoint, aDeltaX,
|
|
aDeltaY, aModifierFlags,
|
|
notifier.SaveObserver());
|
|
return NS_OK;
|
|
}
|
|
|
|
void PuppetWidget::LockNativePointer() {
|
|
if (!mBrowserChild) {
|
|
return;
|
|
}
|
|
mBrowserChild->SendLockNativePointer();
|
|
}
|
|
|
|
void PuppetWidget::UnlockNativePointer() {
|
|
if (!mBrowserChild) {
|
|
return;
|
|
}
|
|
mBrowserChild->SendUnlockNativePointer();
|
|
}
|
|
|
|
void PuppetWidget::SetConfirmedTargetAPZC(
|
|
uint64_t aInputBlockId,
|
|
const nsTArray<ScrollableLayerGuid>& aTargets) const {
|
|
if (mBrowserChild) {
|
|
mBrowserChild->SetTargetAPZC(aInputBlockId, aTargets);
|
|
}
|
|
}
|
|
|
|
void PuppetWidget::UpdateZoomConstraints(
|
|
const uint32_t& aPresShellId, const ScrollableLayerGuid::ViewID& aViewId,
|
|
const Maybe<ZoomConstraints>& aConstraints) {
|
|
if (mBrowserChild) {
|
|
mBrowserChild->DoUpdateZoomConstraints(aPresShellId, aViewId, aConstraints);
|
|
}
|
|
}
|
|
|
|
bool PuppetWidget::AsyncPanZoomEnabled() const {
|
|
return mBrowserChild && mBrowserChild->AsyncPanZoomEnabled();
|
|
}
|
|
|
|
bool PuppetWidget::GetEditCommands(NativeKeyBindingsType aType,
|
|
const WidgetKeyboardEvent& aEvent,
|
|
nsTArray<CommandInt>& aCommands) {
|
|
MOZ_ASSERT(!aEvent.mFlags.mIsSynthesizedForTests);
|
|
// Validate the arguments.
|
|
if (NS_WARN_IF(!nsIWidget::GetEditCommands(aType, aEvent, aCommands))) {
|
|
return false;
|
|
}
|
|
if (NS_WARN_IF(!mBrowserChild)) {
|
|
return false;
|
|
}
|
|
mBrowserChild->RequestEditCommands(aType, aEvent, aCommands);
|
|
return true;
|
|
}
|
|
|
|
WindowRenderer* PuppetWidget::GetWindowRenderer() {
|
|
if (!mWindowRenderer) {
|
|
if (XRE_IsParentProcess()) {
|
|
// On the parent process there is no CompositorBridgeChild which confuses
|
|
// some layers code, so we use basic layers instead. Note that we create
|
|
mWindowRenderer = new FallbackRenderer;
|
|
return mWindowRenderer;
|
|
}
|
|
|
|
// If we know for sure that the parent side of this BrowserChild is not
|
|
// connected to the compositor, we don't want to use a "remote" layer
|
|
// manager like WebRender or Client. Instead we use a Basic one which
|
|
// can do drawing in this process.
|
|
MOZ_ASSERT(!mBrowserChild ||
|
|
mBrowserChild->IsLayersConnected() != Some(true));
|
|
mWindowRenderer = CreateFallbackRenderer();
|
|
}
|
|
|
|
return mWindowRenderer;
|
|
}
|
|
|
|
bool PuppetWidget::CreateRemoteLayerManager(
|
|
const std::function<bool(WebRenderLayerManager*)>& aInitializeFunc) {
|
|
RefPtr<WebRenderLayerManager> lm = new WebRenderLayerManager(this);
|
|
MOZ_ASSERT(mBrowserChild);
|
|
|
|
if (!aInitializeFunc(lm)) {
|
|
return false;
|
|
}
|
|
|
|
// Force the old LM to self destruct, otherwise if the reference dangles we
|
|
// could fail to revoke the most recent transaction. We only want to replace
|
|
// it if we successfully create its successor because a partially initialized
|
|
// layer manager is worse than a fully initialized but shutdown layer manager.
|
|
DestroyLayerManager();
|
|
mWindowRenderer = std::move(lm);
|
|
return true;
|
|
}
|
|
|
|
nsresult PuppetWidget::RequestIMEToCommitComposition(bool aCancel) {
|
|
if (!mBrowserChild) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
MOZ_ASSERT(!Destroyed());
|
|
|
|
// There must not be composition which is caused by the PuppetWidget instance.
|
|
if (NS_WARN_IF(!mNativeIMEContext.IsValid())) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// We've already requested to commit/cancel composition.
|
|
if (NS_WARN_IF(mIgnoreCompositionEvents)) {
|
|
#ifdef DEBUG
|
|
RefPtr<TextComposition> composition =
|
|
IMEStateManager::GetTextCompositionFor(this);
|
|
MOZ_ASSERT(!composition);
|
|
#endif // #ifdef DEBUG
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<TextComposition> composition =
|
|
IMEStateManager::GetTextCompositionFor(this);
|
|
// This method shouldn't be called when there is no text composition instance.
|
|
if (NS_WARN_IF(!composition)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
MOZ_DIAGNOSTIC_ASSERT(
|
|
composition->IsRequestingCommitOrCancelComposition(),
|
|
"Requesting commit or cancel composition should be requested via "
|
|
"TextComposition instance");
|
|
|
|
bool isCommitted = false;
|
|
nsAutoString committedString;
|
|
if (NS_WARN_IF(!mBrowserChild->SendRequestIMEToCommitComposition(
|
|
aCancel, &isCommitted, &committedString))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// If the composition wasn't committed synchronously, we need to wait async
|
|
// composition events for destroying the TextComposition instance.
|
|
if (!isCommitted) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Dispatch eCompositionCommit event.
|
|
WidgetCompositionEvent compositionCommitEvent(true, eCompositionCommit, this);
|
|
InitEvent(compositionCommitEvent, nullptr);
|
|
compositionCommitEvent.mData = committedString;
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
DispatchEvent(&compositionCommitEvent, status);
|
|
|
|
#ifdef DEBUG
|
|
RefPtr<TextComposition> currentComposition =
|
|
IMEStateManager::GetTextCompositionFor(this);
|
|
MOZ_ASSERT(!currentComposition);
|
|
#endif // #ifdef DEBUG
|
|
|
|
// Ignore the following composition events until we receive new
|
|
// eCompositionStart event.
|
|
mIgnoreCompositionEvents = true;
|
|
|
|
Unused << mBrowserChild->SendOnEventNeedingAckHandled(
|
|
eCompositionCommitRequestHandled);
|
|
|
|
// NOTE: PuppetWidget might be destroyed already.
|
|
return NS_OK;
|
|
}
|
|
|
|
// When this widget caches input context and currently managed by
|
|
// IMEStateManager, the cache is valid.
|
|
bool PuppetWidget::HaveValidInputContextCache() const {
|
|
return (mInputContext.mIMEState.mEnabled != IMEEnabled::Unknown &&
|
|
IMEStateManager::GetWidgetForActiveInputContext() == this);
|
|
}
|
|
|
|
nsRefreshDriver* PuppetWidget::GetTopLevelRefreshDriver() const {
|
|
if (!mBrowserChild) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (PresShell* presShell = mBrowserChild->GetTopLevelPresShell()) {
|
|
return presShell->GetRefreshDriver();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void PuppetWidget::SetInputContext(const InputContext& aContext,
|
|
const InputContextAction& aAction) {
|
|
mInputContext = aContext;
|
|
// Any widget instances cannot cache IME open state because IME open state
|
|
// can be changed by user but native IME may not notify us of changing the
|
|
// open state on some platforms.
|
|
mInputContext.mIMEState.mOpen = IMEState::OPEN_STATE_NOT_SUPPORTED;
|
|
if (!mBrowserChild) {
|
|
return;
|
|
}
|
|
mBrowserChild->SendSetInputContext(aContext, aAction);
|
|
}
|
|
|
|
InputContext PuppetWidget::GetInputContext() {
|
|
// XXX Currently, we don't support retrieving IME open state from child
|
|
// process.
|
|
|
|
// If the cache of input context is valid, we can avoid to use synchronous
|
|
// IPC.
|
|
if (HaveValidInputContextCache()) {
|
|
return mInputContext;
|
|
}
|
|
|
|
NS_WARNING("PuppetWidget::GetInputContext() needs to retrieve it with IPC");
|
|
|
|
// Don't cache InputContext here because this process isn't managing IME
|
|
// state of the chrome widget. So, we cannot modify mInputContext when
|
|
// chrome widget is set to new context.
|
|
InputContext context;
|
|
if (mBrowserChild) {
|
|
mBrowserChild->SendGetInputContext(&context.mIMEState);
|
|
}
|
|
return context;
|
|
}
|
|
|
|
NativeIMEContext PuppetWidget::GetNativeIMEContext() {
|
|
return mNativeIMEContext;
|
|
}
|
|
|
|
nsresult PuppetWidget::NotifyIMEOfFocusChange(
|
|
const IMENotification& aIMENotification) {
|
|
MOZ_ASSERT(IMEStateManager::CanSendNotificationToWidget());
|
|
|
|
if (!mBrowserChild) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
bool gotFocus = aIMENotification.mMessage == NOTIFY_IME_OF_FOCUS;
|
|
if (gotFocus) {
|
|
// When IME gets focus, we should initialize all information of the
|
|
// content, however, it may fail to get it because the editor may have
|
|
// already been blurred.
|
|
if (NS_WARN_IF(!mContentCache.CacheAll(this, &aIMENotification))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
} else {
|
|
// When IME loses focus, we don't need to store anything.
|
|
mContentCache.Clear();
|
|
}
|
|
|
|
mIMENotificationRequestsOfParent =
|
|
IMENotificationRequests(IMENotificationRequests::NOTIFY_ALL);
|
|
RefPtr<PuppetWidget> self = this;
|
|
mBrowserChild->SendNotifyIMEFocus(mContentCache, aIMENotification)
|
|
->Then(
|
|
GetMainThreadSerialEventTarget(), __func__,
|
|
[self](IMENotificationRequests&& aRequests) {
|
|
self->mIMENotificationRequestsOfParent = aRequests;
|
|
if (TextEventDispatcher* dispatcher =
|
|
self->GetTextEventDispatcher()) {
|
|
dispatcher->OnWidgetChangeIMENotificationRequests(self);
|
|
}
|
|
},
|
|
[self](mozilla::ipc::ResponseRejectReason&& aReason) {
|
|
NS_WARNING("SendNotifyIMEFocus got rejected.");
|
|
});
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult PuppetWidget::NotifyIMEOfCompositionUpdate(
|
|
const IMENotification& aIMENotification) {
|
|
MOZ_ASSERT(IMEStateManager::CanSendNotificationToWidget());
|
|
|
|
if (NS_WARN_IF(!mBrowserChild)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (NS_WARN_IF(!mContentCache.CacheSelection(this, &aIMENotification))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
mBrowserChild->SendNotifyIMECompositionUpdate(mContentCache,
|
|
aIMENotification);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult PuppetWidget::NotifyIMEOfTextChange(
|
|
const IMENotification& aIMENotification) {
|
|
MOZ_ASSERT(IMEStateManager::CanSendNotificationToWidget());
|
|
MOZ_ASSERT(aIMENotification.mMessage == NOTIFY_IME_OF_TEXT_CHANGE,
|
|
"Passed wrong notification");
|
|
|
|
if (!mBrowserChild) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// FYI: text change notification is the first notification after
|
|
// a user operation changes the content. So, we need to modify
|
|
// the cache as far as possible here.
|
|
|
|
if (NS_WARN_IF(!mContentCache.CacheText(this, &aIMENotification))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// BrowserParent doesn't this this to cache. we don't send the notification
|
|
// if parent process doesn't request NOTIFY_TEXT_CHANGE.
|
|
if (mIMENotificationRequestsOfParent.WantTextChange()) {
|
|
mBrowserChild->SendNotifyIMETextChange(mContentCache, aIMENotification);
|
|
} else {
|
|
mBrowserChild->SendUpdateContentCache(mContentCache);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult PuppetWidget::NotifyIMEOfSelectionChange(
|
|
const IMENotification& aIMENotification) {
|
|
MOZ_ASSERT(IMEStateManager::CanSendNotificationToWidget());
|
|
MOZ_ASSERT(aIMENotification.mMessage == NOTIFY_IME_OF_SELECTION_CHANGE,
|
|
"Passed wrong notification");
|
|
if (!mBrowserChild) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Note that selection change must be notified after text change if it occurs.
|
|
// Therefore, we don't need to query text content again here.
|
|
mContentCache.SetSelection(this, aIMENotification.mSelectionChangeData);
|
|
|
|
mBrowserChild->SendNotifyIMESelection(mContentCache, aIMENotification);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult PuppetWidget::NotifyIMEOfMouseButtonEvent(
|
|
const IMENotification& aIMENotification) {
|
|
MOZ_ASSERT(IMEStateManager::CanSendNotificationToWidget());
|
|
if (!mBrowserChild) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
bool consumedByIME = false;
|
|
if (!mBrowserChild->SendNotifyIMEMouseButtonEvent(aIMENotification,
|
|
&consumedByIME)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return consumedByIME ? NS_SUCCESS_EVENT_CONSUMED : NS_OK;
|
|
}
|
|
|
|
nsresult PuppetWidget::NotifyIMEOfPositionChange(
|
|
const IMENotification& aIMENotification) {
|
|
MOZ_ASSERT(IMEStateManager::CanSendNotificationToWidget());
|
|
if (NS_WARN_IF(!mBrowserChild)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (NS_WARN_IF(!mContentCache.CacheEditorRect(this, &aIMENotification))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (NS_WARN_IF(!mContentCache.CacheSelection(this, &aIMENotification))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (mIMENotificationRequestsOfParent.WantPositionChanged()) {
|
|
mBrowserChild->SendNotifyIMEPositionChange(mContentCache, aIMENotification);
|
|
} else {
|
|
mBrowserChild->SendUpdateContentCache(mContentCache);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
struct CursorSurface {
|
|
UniquePtr<char[]> mData;
|
|
IntSize mSize;
|
|
};
|
|
|
|
void PuppetWidget::SetCursor(const Cursor& aCursor) {
|
|
if (!mBrowserChild) {
|
|
return;
|
|
}
|
|
|
|
const bool force = mUpdateCursor;
|
|
if (!force && mCursor == aCursor) {
|
|
return;
|
|
}
|
|
|
|
bool hasCustomCursor = false;
|
|
Maybe<mozilla::ipc::BigBuffer> customCursorData;
|
|
size_t length = 0;
|
|
IntSize customCursorSize;
|
|
int32_t stride = 0;
|
|
auto format = SurfaceFormat::B8G8R8A8;
|
|
ImageResolution resolution = aCursor.mResolution;
|
|
if (aCursor.IsCustom()) {
|
|
int32_t width = 0, height = 0;
|
|
aCursor.mContainer->GetWidth(&width);
|
|
aCursor.mContainer->GetHeight(&height);
|
|
const int32_t flags =
|
|
imgIContainer::FLAG_SYNC_DECODE | imgIContainer::FLAG_ASYNC_NOTIFY;
|
|
RefPtr<SourceSurface> surface;
|
|
if (width && height &&
|
|
aCursor.mContainer->GetType() == imgIContainer::TYPE_VECTOR) {
|
|
// For vector images, scale to device pixels.
|
|
resolution.ScaleBy(GetDefaultScale().scale);
|
|
resolution.ApplyInverseTo(width, height);
|
|
surface = aCursor.mContainer->GetFrameAtSize(
|
|
{width, height}, imgIContainer::FRAME_CURRENT, flags);
|
|
} else {
|
|
// NOTE(emilio): We get the frame at the full size, ignoring resolution,
|
|
// because we're going to rasterize it, and we'd effectively lose the
|
|
// extra pixels if we rasterized to CustomCursorSize.
|
|
surface =
|
|
aCursor.mContainer->GetFrame(imgIContainer::FRAME_CURRENT, flags);
|
|
}
|
|
if (surface) {
|
|
if (RefPtr<DataSourceSurface> dataSurface = surface->GetDataSurface()) {
|
|
hasCustomCursor = true;
|
|
customCursorData =
|
|
nsContentUtils::GetSurfaceData(*dataSurface, &length, &stride);
|
|
customCursorSize = dataSurface->GetSize();
|
|
format = dataSurface->GetFormat();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!mBrowserChild->SendSetCursor(
|
|
aCursor.mDefaultCursor, hasCustomCursor, std::move(customCursorData),
|
|
customCursorSize.width, customCursorSize.height, resolution.mX,
|
|
resolution.mY, stride, format, aCursor.mHotspotX, aCursor.mHotspotY,
|
|
force)) {
|
|
return;
|
|
}
|
|
mCursor = aCursor;
|
|
mUpdateCursor = false;
|
|
}
|
|
|
|
void PuppetWidget::SetChild(PuppetWidget* aChild) {
|
|
MOZ_ASSERT(this != aChild, "can't parent a widget to itself");
|
|
MOZ_ASSERT(!aChild->mChild,
|
|
"fake widget 'hierarchy' only expected to have one level");
|
|
|
|
mChild = aChild;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
PuppetWidget::WidgetPaintTask::Run() {
|
|
if (mWidget) {
|
|
mWidget->Paint();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
void PuppetWidget::Paint() {
|
|
if (!GetCurrentWidgetListener()) return;
|
|
|
|
mWidgetPaintTask.Revoke();
|
|
|
|
RefPtr<PuppetWidget> strongThis(this);
|
|
|
|
GetCurrentWidgetListener()->WillPaintWindow(this);
|
|
|
|
if (GetCurrentWidgetListener()) {
|
|
GetCurrentWidgetListener()->DidPaintWindow();
|
|
}
|
|
}
|
|
|
|
void PuppetWidget::PaintNowIfNeeded() {
|
|
if (IsVisible() && mWidgetPaintTask.IsPending()) {
|
|
Paint();
|
|
}
|
|
}
|
|
|
|
void PuppetWidget::OnMemoryPressure(layers::MemoryPressureReason aWhy) {
|
|
if (aWhy != MemoryPressureReason::LOW_MEMORY_ONGOING && !mVisible &&
|
|
mWindowRenderer && mWindowRenderer->AsWebRender() &&
|
|
XRE_IsContentProcess()) {
|
|
mWindowRenderer->AsWebRender()->ClearCachedResources();
|
|
}
|
|
}
|
|
|
|
bool PuppetWidget::NeedsPaint() {
|
|
// e10s popups are handled by the parent process, so never should be painted
|
|
// here
|
|
if (XRE_IsContentProcess() &&
|
|
StaticPrefs::browser_tabs_remote_desktopbehavior() &&
|
|
mWindowType == eWindowType_popup) {
|
|
NS_WARNING("Trying to paint an e10s popup in the child process!");
|
|
return false;
|
|
}
|
|
|
|
return mVisible;
|
|
}
|
|
|
|
LayoutDeviceIntPoint PuppetWidget::GetChromeOffset() {
|
|
if (!GetOwningBrowserChild()) {
|
|
NS_WARNING("PuppetWidget without Tab does not have chrome information.");
|
|
return LayoutDeviceIntPoint();
|
|
}
|
|
return GetOwningBrowserChild()->GetChromeOffset();
|
|
}
|
|
|
|
LayoutDeviceIntPoint PuppetWidget::WidgetToScreenOffset() {
|
|
return GetWindowPosition() + WidgetToTopLevelWidgetOffset();
|
|
}
|
|
|
|
LayoutDeviceIntPoint PuppetWidget::GetWindowPosition() {
|
|
if (!GetOwningBrowserChild()) {
|
|
return LayoutDeviceIntPoint();
|
|
}
|
|
|
|
int32_t winX, winY, winW, winH;
|
|
NS_ENSURE_SUCCESS(
|
|
GetOwningBrowserChild()->GetDimensions(0, &winX, &winY, &winW, &winH),
|
|
LayoutDeviceIntPoint());
|
|
return LayoutDeviceIntPoint(winX, winY) +
|
|
GetOwningBrowserChild()->GetClientOffset();
|
|
}
|
|
|
|
LayoutDeviceIntRect PuppetWidget::GetScreenBounds() {
|
|
return LayoutDeviceIntRect(WidgetToScreenOffset(), mBounds.Size());
|
|
}
|
|
|
|
uint32_t PuppetWidget::GetMaxTouchPoints() const {
|
|
return mBrowserChild ? mBrowserChild->MaxTouchPoints() : 0;
|
|
}
|
|
|
|
void PuppetWidget::StartAsyncScrollbarDrag(
|
|
const AsyncDragMetrics& aDragMetrics) {
|
|
mBrowserChild->StartScrollbarDrag(aDragMetrics);
|
|
}
|
|
|
|
ScreenIntMargin PuppetWidget::GetSafeAreaInsets() const {
|
|
return mSafeAreaInsets;
|
|
}
|
|
|
|
void PuppetWidget::UpdateSafeAreaInsets(
|
|
const ScreenIntMargin& aSafeAreaInsets) {
|
|
mSafeAreaInsets = aSafeAreaInsets;
|
|
}
|
|
|
|
nsIWidgetListener* PuppetWidget::GetCurrentWidgetListener() {
|
|
if (!mPreviouslyAttachedWidgetListener || !mAttachedWidgetListener) {
|
|
return mAttachedWidgetListener;
|
|
}
|
|
|
|
if (mAttachedWidgetListener->GetView()->IsPrimaryFramePaintSuppressed()) {
|
|
return mPreviouslyAttachedWidgetListener;
|
|
}
|
|
|
|
return mAttachedWidgetListener;
|
|
}
|
|
|
|
void PuppetWidget::ZoomToRect(const uint32_t& aPresShellId,
|
|
const ScrollableLayerGuid::ViewID& aViewId,
|
|
const CSSRect& aRect, const uint32_t& aFlags) {
|
|
if (!mBrowserChild) {
|
|
return;
|
|
}
|
|
|
|
mBrowserChild->ZoomToRect(aPresShellId, aViewId, aRect, aFlags);
|
|
}
|
|
|
|
void PuppetWidget::LookUpDictionary(
|
|
const nsAString& aText, const nsTArray<mozilla::FontRange>& aFontRangeArray,
|
|
const bool aIsVertical, const LayoutDeviceIntPoint& aPoint) {
|
|
if (!mBrowserChild) {
|
|
return;
|
|
}
|
|
|
|
mBrowserChild->SendLookUpDictionary(aText, aFontRangeArray, aIsVertical,
|
|
aPoint);
|
|
}
|
|
|
|
bool PuppetWidget::HasPendingInputEvent() {
|
|
if (!mBrowserChild) {
|
|
return false;
|
|
}
|
|
|
|
bool ret = false;
|
|
|
|
mBrowserChild->GetIPCChannel()->PeekMessages(
|
|
[&ret](const IPC::Message& aMsg) -> bool {
|
|
if (nsContentUtils::IsMessageInputEvent(aMsg)) {
|
|
ret = true;
|
|
return false; // Stop peeking.
|
|
}
|
|
return true;
|
|
});
|
|
|
|
return ret;
|
|
}
|
|
|
|
// TextEventDispatcherListener
|
|
|
|
NS_IMETHODIMP
|
|
PuppetWidget::NotifyIME(TextEventDispatcher* aTextEventDispatcher,
|
|
const IMENotification& aIMENotification) {
|
|
MOZ_ASSERT(aTextEventDispatcher == mTextEventDispatcher);
|
|
|
|
// If there is different text event dispatcher listener for handling
|
|
// text event dispatcher, that means that native keyboard events and
|
|
// IME events are handled in this process. Therefore, we don't need
|
|
// to send any requests and notifications to the parent process.
|
|
if (mNativeTextEventDispatcherListener) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
switch (aIMENotification.mMessage) {
|
|
case REQUEST_TO_COMMIT_COMPOSITION:
|
|
return RequestIMEToCommitComposition(false);
|
|
case REQUEST_TO_CANCEL_COMPOSITION:
|
|
return RequestIMEToCommitComposition(true);
|
|
case NOTIFY_IME_OF_FOCUS:
|
|
case NOTIFY_IME_OF_BLUR:
|
|
return NotifyIMEOfFocusChange(aIMENotification);
|
|
case NOTIFY_IME_OF_SELECTION_CHANGE:
|
|
return NotifyIMEOfSelectionChange(aIMENotification);
|
|
case NOTIFY_IME_OF_TEXT_CHANGE:
|
|
return NotifyIMEOfTextChange(aIMENotification);
|
|
case NOTIFY_IME_OF_COMPOSITION_EVENT_HANDLED:
|
|
return NotifyIMEOfCompositionUpdate(aIMENotification);
|
|
case NOTIFY_IME_OF_MOUSE_BUTTON_EVENT:
|
|
return NotifyIMEOfMouseButtonEvent(aIMENotification);
|
|
case NOTIFY_IME_OF_POSITION_CHANGE:
|
|
return NotifyIMEOfPositionChange(aIMENotification);
|
|
default:
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP_(IMENotificationRequests)
|
|
PuppetWidget::GetIMENotificationRequests() {
|
|
return IMENotificationRequests(
|
|
mIMENotificationRequestsOfParent.mWantUpdates |
|
|
IMENotificationRequests::NOTIFY_TEXT_CHANGE |
|
|
IMENotificationRequests::NOTIFY_POSITION_CHANGE);
|
|
}
|
|
|
|
NS_IMETHODIMP_(void)
|
|
PuppetWidget::OnRemovedFrom(TextEventDispatcher* aTextEventDispatcher) {
|
|
MOZ_ASSERT(aTextEventDispatcher == mTextEventDispatcher);
|
|
}
|
|
|
|
NS_IMETHODIMP_(void)
|
|
PuppetWidget::WillDispatchKeyboardEvent(
|
|
TextEventDispatcher* aTextEventDispatcher,
|
|
WidgetKeyboardEvent& aKeyboardEvent, uint32_t aIndexOfKeypress,
|
|
void* aData) {
|
|
MOZ_ASSERT(aTextEventDispatcher == mTextEventDispatcher);
|
|
}
|
|
|
|
nsresult PuppetWidget::SetSystemFont(const nsCString& aFontName) {
|
|
if (!mBrowserChild) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
mBrowserChild->SendSetSystemFont(aFontName);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult PuppetWidget::GetSystemFont(nsCString& aFontName) {
|
|
if (!mBrowserChild) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
mBrowserChild->SendGetSystemFont(&aFontName);
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace widget
|
|
} // namespace mozilla
|